Table 2.

Selected electron microprobe analyses for olivine, clynopiroxene and plagioclase found in recent erupted products of Stromboli volcano and in equilibrium with the primitive basaltic magma

OlivineClinopyroxenePlagioclase
TypePumicePumicePumicePumicePumicePumiceLavaLavaPumicePumicePumicePumicePumicePumiceScoriaScoriaLavaLavaPumicePumicePumice
SampleSt063St063St063St063St074St074St053St053St074St063St074St074St063St063St051St051St053St053St063St063St074
Eruption dateApr-03Apr-03Apr-03Apr-03Mar-07Mar-07Jan-03Jan-03Mar-07Apr-03Mar-07Mar-07Apr-03Apr-03Jun-02Jun-02Jan-03Jan-03Apr-03Apr-03Mar-07
Analyses12*34*567891011121314*151617*18192021
SiO239.939.539.941.838.738.5SiO250.952.150.450.852.050.650.250.5SiO247.346.746.248.447.646.547.9
TiO2TiO20.380.580.590.640.410.630.630.80TiO2
A12O3Al2O33.632.944.235.232.964.695.165.22Al2O332.131.332.631.731.831.732.2
Cr2O3Cr2O31.070.40Cr2O3
FeOT15.115.416.39.8217.817.7FeOT3.865.925.544.834.385.005.265.31FeOT1.271.110.831.021.000.910.75
MnO0.290.500.430.790.310.81MnOMnO
MgO45.144.743.647.842.642.5MgO16.216.615.514.817.215.914.614.9MgO
CaO0.440.000.000.330.310.41CaO22.822.322.723.421.922.923.123.3CaO17.117.017.316.517.117.016.4
Na2ONa2O0.200.15Na2O2.192.321.942.262.132.141.94
K2OK2OK2O0.000.260.200.320.240.300.29
Total100.8100.1100.2100.699.799.9Total98.8100.799.299.799.099.498.9100.1Total99.998.799.0100.299.898.699.4
Fo83.983.482.388.980.780.3En46.646.244.143.148.345.242.843.1Ab18.819.516.719.518.218.217.4
Fa15.816.117.210.218.918.8Wo47.244.646.449.044.346.848.648.3An81.279.082.278.680.580.180.9
Fs6.239.238.787.916.887.938.648.57Or0.001.441.131.841.351.681.69
  • *Cigolini et al. (2008)